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Messages - fxpop

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Face and Body Scanning / Re: Face scanner - Prototype
« on: February 01, 2014, 07:45:57 AM »
Dear all,

I just wanted to share some updates on my lasts scans.. im working really hard to improve them

- Im implementing noise projection using 2 strobes on the next few weeks.
- I have to improve lighting
- Highpass is working nicely in some areas, but not on others. I heard infinite tried to contact disney research lab, are they willing to sell their mesoscopic algorithm ?

(raw scan from Agisoft, just applied texture bump)
- Anyways im quite happy!


Great scan!!

One question, sorry if it's been covered before, but does using  noise projection mean you won't get accurate color uv image of the scan and it will require hand painting for vleanup? how does all that work?

Excellent results David! This gives me  hope!  :)  I was banking on using Photoscan with only 1 (or a few) camera as a body scanning system; as Kinect scanning was too low res and I didnt want to go $>25K for pro scanners. Plus, a camera  makes this portable and possible to scan anyone practically anywhere as long as they stand still.

Unfortunately, I'm not having much luck so any advice or further elaboration would be greatly appreciated.  All my results of people look something like this:

For that I used a Canon 5D mk II (not III if that matters) and Ilm trying to figure out what I'm doing wrong.  I think one thing I jus tlearned was that shutter speed shouldn't prevent motion blur! Before I saw that in the body guide I would have thought that would be a bad thing- so I assume Photoscan must use motion blur to compensate for tracking error between photos?

Anyway, do you know why my scans appear like that and how can I get even a facsimile of your results? Also, did you mask the images before analysis or did Photoscan use the background with  tracking? I haven't masked the images in an attempt yet, do you think that matters?

One more question, do you think an entire body scan (including fingers) is possible with a single camera?

Oh and fantastic work!!  ;D

Face and Body Scanning / Re: New User Problems with Body scanning
« on: January 27, 2014, 04:01:56 PM »
you're lucky to have that result so far... but I think that's about how far you can go with a one Cam setup..

so to answer, unless you photograph a dead person, he or she will always move... always, no matter how stand still a person might be good at..

.. yes you do need a multi cam setup...  8)


Thanks very much for your reply. :)

But I'm confused... wouldn't the "micro-movements" that the person is moving with be particularly in the chest area (where breathing is)?  I would expect that area to have by far the most movement and thus more displacement in the noise around that area?  The entire person seems equally noisy - so I don't understand where this noise is coming from.

Does the displacement noise come from movement of the person? jpg noise in the image? blurriness of photo? (I did not include images to analyze where the image was not perfectly sharp)

What did you think of the statue image above?  That had bumpiness, but not as much (also a smaller 12Mp camera)  How could I improve that one? If it was the movement of scanning a living being then I would expect my statue scan to be a little cleaner?

Sorry for all the questions, I am trying to learn what is possible.  Feel free to link to another post if I have missed something and it is already explained here.

I would love a multi-cam setup, but for now I want to see what is the best I can with 1 or 2 cameras not synced...  :o  I don't mind a little clean up in 3DCoat or something.

thanks for any help! :)

Face and Body Scanning / New User Problems with Body scanning
« on: January 27, 2014, 06:30:39 AM »
Hi,  I just bought Photoscan and love it!   :)    But I'm running into problems as I'm starting to learn it, the Photoscan noob that I am.

I've had success with scanning basic inanimate objects like small statues:

(There is some bumpiness to the scan, but it is totally usable and good enough for me to bring into another app like 3DCoat and retopologize it and texture bake it smaller if I wanted - though I suspect the bumpiness I am experiencing is user error.)

My problems arise whenever I try to scan a person.  No matter what I do I keep getting a very bumpy surface that makes the models unusable.

I'm not sure if this is a calibration issue, a camera quality issue, a color tracking issue with noise from the images, or me having the settings wrong when aligning, building the point clouds and mesh.  I'm assuming the bumpiness is not because of micro movements in the person breathing or whatever, because there is not bigger bumpiness in the chest area where one would expect the most moving.

I have tried scanning people with a 12Mp Sanyo HD2000 camera as well as a Canon 5D mkII and both have similar issues so I am expecting the problem to be something I am doing wrong.

I am scanning with 1 camera, basic indoor lighting, and also lighting using one of these:
while taking pictures handheld - but I am careful about focus and overlap between pictures.

I'm talking particularly about the bumpiness on the skin and face and arms...

Here is an example of how it turns out:

I would greatly appreciate any help in workflow or settings to get a more acceptable output.  Obviously, I'm not going to get the results that the guy who uses 80 DSLRs on tripods in perfect studio lighting, synced together with 1/10000th sec shutter, but surely a handheld series of photos can do better than what I've done.  Perhaps if someone could help me with calibration that would be useful?  I tried using the lens app from here, but kept getting errors trying to import its xml into Photoscan - so I tried importing the checkerboards into Photoscan itself as a different chunk but couldn't figure our how to get it to use it all correctly.

Thanks very much for your help!!

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